Mexico ? Swine flu is running wild in the Southern Hemisphere and is spreading rapidly through Europe, with Britain projected to reach 100,000 daily cases by the end of August. The virus is even showing signs of rebounding in Mexico.

World Health Organization Director-General Dr. Margaret Chan and health ministers from around the globe huddled Thursday in Cancun for a two-day summit to design strategies for battling the pandemic. Nations attending include the United States, Canada, China, Britain and Brazil.

The number of U.S. swine flu cases has reached nearly 34,000, and deaths have risen 34 percent in the past week to 170, federal health officials reported Thursday.